Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White (Renewed)

Amazon Renewed

Amazon Renewed Corsair RMX White Series (2018)

Name: Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White (Renewed)
Brand: Amazon Renewed
SKU: B07XK85BRF

Status: Corsair RMX White Series: Unavailable on Amazon as of 2026-10-07 04:33 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

🛒 Search eBay for this model

Bottom line: The Amazon Renewed Corsair RMX White Series is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-07 04:33 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: ALIMENTATIONS Corsair 601-850 Watt RM850X 850W… — $218.00 on Amazon as of 2026-10-06 10:12 UTC (price may vary).

View Current Price — $218.00

Similar: CORSAIR RM850x Fully Modular Low-Noise ATX Power… — $85.69 on Amazon as of 2026-10-06 22:20 UTC (price may vary).

View Current Price — $85.69

Similar: CORSAIR RM850x Shift Fully Modular ATX Power… — $89.50 on Amazon as of 2026-10-06 16:28 UTC (price may vary).

View Current Price — $89.50

Original listing (currently unavailable) → Compare to similar power supplies

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Backed by Amazon Renewed's warranty and support channels

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Fully modular, flat cables, flexible fully modular, flat White cables for Easy cable routing

SpecPicks Verdict

SpecPicks scored Amazon Renewed Corsair RMX White Series using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Amazon Renewed's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

80 plus gold Certified: high efficiency operation for lower power consumption, less noise and cooler temperatures
Tuned for Low noise operation: a specially set fan curve ensures that, even at full load, fan noise is kept to a minimum
Zero rpm fan mode: at Low and medium loads the cooling fan switches off entirely for near-silent operation
100% all Japanese capacitors: premium internal components ensure unwavering power delivery and long-term reliability
Fully modular, flat cables: flexible fully modular, flat White cables for Easy cable routing

Full Specifications

Brand	Corsair
Wattage	850 watts
Fan Count	1
Model Name	rmx,series
Form Factor	ATX
Connector Type	ATX
Cooling Method	Air
Number of Fans	1
Output Wattage	850 watts
Mfr Part Number	CP-9020188-NA-cr
Number of Items	1
Zero rpm fan mode	at Low and medium loads the cooling fan switches off entirely for near-silent operation
Compatible Devices	Personal Computer
Power Supply Design	Full Modular
Warranty Description	90 days limited warranty
Maximum Input Voltage	120 volts_of_alternating_current
Minimum Input Voltage	24 volts
80 plus gold Certified	high efficiency operation for lower power consumption, less noise and cooler temperatures
System Bus Connector Type	20+4 Pin
Fully modular, flat cables	flexible fully modular, flat White cables for Easy cable routing
Full listing title	Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White (Renewed)

Ready to buy?

Amazon shows no buyable offer for Corsair RMX White Series at the last check. A similar in-stock product is ALIMENTATIONS Corsair 601-850 Watt RM850X 850W…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $218.00